One side wants to keep living and make more homes. And would defend themselves whatever it takes.
Another side wants to commit genocide and thinks the other side is the scum of the earth, to do the cleansing they are ready to do whatever it takes, including but not limited to tying bombs around children and sending them to the other side, and complain about the other side killing their children.
Edit: to clarify, Israel is not doing any suicide attacks or sending innocent children to do so, it's the other side. Whatever it's called, Hamas/Palestinian Authorities or whatever, most of the people defend either whenever it suits them.